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沈阳建筑大学学报(自然科学版) 2011年第3期27卷 468-473页

作者：李立新吕青山陈涛许丕元沈阳建筑大学土木工程学院沈阳地铁有限公司地铁建设指挥部

目的根据地铁盾构隧道衬砌管片所受的实际土压力,研究试验加载方案,为地铁衬砌管片的检测提供技术依据.方法采用两点和三点加载法,对衬砌管片的轴力和挠度进行比较分析.结果弯矩相同时,三点加载法比两点加载法测出的轴力和挠度要大;越... 详细信息

目的根据地铁盾构隧道衬砌管片所受的实际土压力,研究试验加载方案,为地铁衬砌管片的检测提供技术依据.方法采用两点和三点加载法,对衬砌管片的轴力和挠度进行比较分析.结果弯矩相同时,三点加载法比两点加载法测出的轴力和挠度要大;越靠近管片中心,挠度变化越大,且随着压力的增大跨中两侧的挠度随之增大,而端头的挠度先增大,后减小.结论三点加载法与两点加载法相比,三点加载法更接近实际情况,是一种比较合理的加载方案.

关键词：衬砌管片轴力挠度荷载

FLOCCULATION/COAGULATION OF NATURAL ORGANIC MATTER FOR PRETREATMENT OF WATER ANDWASTE WATER

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化工学报 2000年第S1期51卷 47-52页

作者： Yu Jiang, Sun Darren Delain and Tay Joo Hwa (environmental engineering research center, Division of environmental & Water Resources engineering School of Civil & Structural engineering, Nanyang Technological university 50 Nanyang Avenue, Singapore

Characterization of water, waste water and natural organic matter are involved in this paper, and as well as the features of flocculation and coagulation for removing natural organic matter from water and waste water Novel flocculant and coagualant is strongly asked for improving removal efficiency and environment friendly. Enhanced coagulation is introduced to meet the experimental and practical requirement.

关键词： flocculation coagulation natural organic matted enhanced coagulation

Redevelopment of liftoff rates of saltating sand grains based on a simple optimization model

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Science china Earth Sciences 2010年第4期53卷 568-574页

作者： CHENG Hong & ZOU XueYong State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing Normal university,Beijing 100875,china MOE engineering center of Desertification and Blown-sand Control,Beijing Normal university,Beijing 100875,china Key Laboratory of environmental Change and Natural Disaster of the Ministry of Education of china,Beijing Normal university,Beijing 100875,china 1. State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Beijing 100875 China2. MOE Engineering Center of Desertification and Blown-sand Control Beijing Normal University Beijing 100875 China3. Key Laboratory of Environmental Change and Natural Disaster of the Ministry of Education of China Beijing Normal University Beijing 100875 China

This paper is a redevelopment result of liftoff rates of saltating sand grains based on our previous *** sand flow is a complex multi-phase flow because of a special two-phase gas-solid flow near ground *** extensive research on the movement of blowing sand,no model fully characterizes aeolian sand flow,and large differences often exist between simulations of aeolian sand movement and field *** key problem is a few of sufficient research on liftoff rates of saltating sand grains(also called the number of liftoff sand grains per unit time and per unit bed area).It is necessary to re-search in advance liftoff rates of saltating sand *** redeveloped liftoff rates of saltating sand grains by establishing an optimization model based on the flux of aeolian sand flow at different heights of the sampler in wind tunnel and the simulated capture of saltating sand grains by different heights of the sampler that are from different liftoff position(distance from the sampler) in order to revise previous inversion condition of liftoff rates of saltating sand *** rates increased rapidly with increasing wind *** frictional wind velocities of u=0.67,0.77,0.82,0.83,and 0.87 m s-1,liftoff rates were 3840,954502,5235114,5499407,and 7696291 sand grain s-1 m-2,*** rates could be expressed as the square of the instantaneous frictional wind velocity and a constant(0.663) that differs from the critical(threshold) frictional wind velocity at which saltation *** our results require additional experimental validation and the simple optimization model must be improved,they nonetheless provide a strong basis for future research.

关键词： liftoff rates of saltating sand grains optimization model wind tunnel two-phase gas-solid flow

Generation and Characterization of C305,a Murine Neutralizing scFv Antibody That Can Inhibit BLyS Binding to Its Receptor BCMA

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Acta Biochimica et Biophysica Sinica 2005年第6期37卷 415-420页

作者： Mei-Yun LIU~(1.2) Wei HAN~(2.3) Yan-Li DING~(2.3) Tian-Hong ZHOU~1 Rui-Yang TIAN~2 Sheng-Li YANG~2 Hui LIU~2 Yi GONG~2 1 College of Life Science and Technology,Jinan university. Guangzhou 510632, china 2 Shanghai research center of Biotechnology.Shanghai Institutes for Biological Sciences. Chinese Academy of Sciences. Shanghai 200233,china 3 School of Pharmaceatical engineering, shenyang Pharmaceutical university. shenyang 110016. china CollegeofLifeScienceandTechnology JinanUniversityGuangzhou510632China

B-lymphocyte stimulator(BLyS)is a member of the tumor necrosis factor(TNF)family anda key regulator of B cell *** single-chain fragment variable(scFv)antibody against BLySbinding to its receptor BCMA has the potential to play a prominent role in autoimmune disease *** display scFv library constructed on pⅢ protein of M13 filamentous phage was screened using *** five rounds of panning,their binding activity was characterized by *** sequencingrevealed that at least two different scFv gene fragments(C305 and D416)were *** two differentscFv gene fragments were expressed to obtain the soluble scFv antibodies,then the soluble scFv antibodieswere characterized by means of competitive ELISA and in vitro neutralization *** results indicatedthat C305 is the neutralizing scFv antibody that can inhibit BLyS binding to its receptor BCMA.

关键词： phage display neutralizing scFv antibody BLyS

A one-dimensional heat transfer model of the Antarctic Ice Sheet and modeling of snow temperatures at Dome A, the summit of Antarctic Plateau

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Science china Earth Sciences 2010年第5期53卷 763-772页

作者： CHEN BaiLian1,3, ZHANG RenHe2, SUN ShuFen1, BIAN LinGen2, XIAO CunDe4,2 & ZHANG TingJun5 1 Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, china 2 Chinese Academy of Meteorological Sciences, Beijing 100081, china 3 Graduate university of Chinese Academy of Sciences, Beijing 100049, china 4 Cold and Arid Regions environmental and engineering research Institute, Chinese Academy of Sciences, Lanzhou 730000, china 5 The National Snow and Ice Data center, university of Colorado, Boulder, CO 80309-0449, USA 1. Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China3. Graduate University of Chinese Academy of Sciences Beijing 100049 China2. Chinese Academy of Meteorological Sciences Beijing 100081 China4. Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China5. The National Snow and Ice Data Center University of Colorado Boulder CO 80309-0449 USA

A vertical one-dimensional numerical model for heat transferring within the near-surface snow layer of the Antarctic Ice Sheet was developed based on simplified parameterizations of associated physical processes for the atmosphere, radiation, and snow/ice systems. Using the meteorological data of an automatic weather station (AWS) at Dome A (80°22′S, 70°22′E), we applied the model to simulate the seasonal temperature variation within a depth of 20 m. Comparison of modeled results with observed snow temperatures at 4 measurement depths (0.1, 1, 3, 10 m) shows good agreement and consistent seasonal variations. The model results reveal the vertical temperature structure within the near-surface snow layer and its seasonal variance with more details than those by limited measurements. Analyses on the model outputs of the surface energy fluxes show that: 1) the surface energy balance at Dome A is characterized by the compensation between negative net radiation and the positive sensible fluxes, and 2) the sensible heat is on average transported from the atmosphere to the snow, and has an evident increase in spring. The results are considered well representative for the highest interior Antarctic Plateau.

关键词： Antarctic Ice Sheet near-surface layer energy transfer numerical model

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钢球磨煤机的动态参数模型与仿真研究

系统仿真学报 2004年第4期16卷 778-780页

作者：陶文华柴天佑岳恒辽宁石油化工大学抚顺113001 东北大学自动化研究中心沈阳110004

火电厂锅炉制粉系统的钢球磨煤机是多变量耦合、时滞及非线性的复杂对象,其复杂的动态特性,使其数学模型很难得到,投入自动控制的效果不理想。本文根据制粉系统钢球磨煤机的工作过程机理,研究了各输入、输出之间的相互影响关系,通过集... 详细信息

火电厂锅炉制粉系统的钢球磨煤机是多变量耦合、时滞及非线性的复杂对象,其复杂的动态特性,使其数学模型很难得到,投入自动控制的效果不理想。本文根据制粉系统钢球磨煤机的工作过程机理,研究了各输入、输出之间的相互影响关系,通过集中参数方法建立了钢球磨煤机的动态参数模型,用三输入三输出的状态方程表示。此模型很好地揭示了钢球磨煤机的运行状况及其非线性、强耦合的特性, 而且适合于不同类型的钢球磨煤机。动态参数模型仿真模块用Matlab 的Simulink 编写,仿真效果与实际运行相符, 因此为火电厂锅炉制粉系统的先进控制研究提供了良好的数学模型基础。

关键词：钢球磨煤机多变量耦合数学模型仿真

Planning environmental Impact Assessment Orienting Sustainable Development: Opportunities and Challenges

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Chinese Journal of Population,Resources and Environment 2005年第4期3卷 33-39页

作者： Sun Yanjun 1, Chen Xingeng 1, Bao Yun 2, Peng Xiaochun 3 & Gao Changbo 1 1.School of environmental Science and engineering, Sun Yat-sen university, Guangzhou 510275, china 2. research center for Coastal Ocean Science and Technology, Sun Yat-sen university, Guangzhou 510275, china 3. South china Institute of environmental Science, SEPA, Guangzhou 510655, china

Strategic environmental Assessment is a frontier subject in the field of environmental Impact Assessment. In the past two decades, especially in recent years, much more importance has been attached to Strategic environmental Assessment. The environmental Impact Assessment Law of the P.R. china which was promulgated provides a great opportunity for the development of Planning environmental Impact Assessment and brings great challenges for the development of traditional Project environmental Impact Assessment and Planning environmental Impact Assessment at the same time. In order to promote the implementation of "The EIA Law", the inherent limitations of Project environmental Impact Assessment must be identified sufficiently and the theory research and practice of Planning environmental Impact Assessment should be strengthened as well. Measures should be taken currently to enforce the operation system. The authors wish to offer a few references to the progress and implementation of Planning environmental Impact Assessment in china.

关键词： planning environmental impact assessment strategic environmental assessment sustainable development opportunities challenges.

Study of MA Protection Technology of Extending Inheritance Hierarchy Trees in IDC Network Management

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Study of MA Protection Technology of Extending Inheritance H...

Highly sensitive and selective chemosensor for Cu～(2+) detection based on a N-propargyl rhodamine 6G-hydrazide derivative

2009中国控制与决策会议

作者： Wu Jiehong~1,Liu Cheng~1,Gao Fuxiang~2 1.engineering Training center,shenyang Institute of Aeronautical and engineering,shenyang 110136,china 2.College of Information Science and engineering,Northeastern university,shenyang 110006,china

Mobile agents(MA) are autonomous software entities that are able to migrate across heterogeneous network execution *** and autonomy compensate the deficiencies of distributed technology pretty well. Thus,mobile agents have wide application *** the security issues with mobile agents have not been solved and are becoming obstacles for the application of mobile *** with host protection,the research on mobile agent protection is still at the beginning *** is a technique in which the mobile code producer enforces the security policy by applying a behavior transformation to the code before sending it to run on different *** paper presents a protection scheme of mobile agent in network management application,which combining method of extending inheritance hierarchy tree and time checking technology to protect the security of *** protection scheme is tested in actual network management environment,which can effectively identify the malicious host.

关键词： mobile agent extending inheritance hierarchy tree active protection time checking

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Science china Chemistry 2012年第4期55卷 626-631页

作者： MA Xing1,2,LIU Jun1,DU YuGuo1,2,WEI GuoHua1 & WEI DongBin1 1State Key Laboratory of environmental Chemistry and Ecotoxicology research center for Eco-environmental Sciences,Chinese Academy of Sciences,Beijing 100085,china 2College of Chemistry and Chemical engineering,Graduate university of Chinese Academy of Sciences,Beijing 100049,china 1. State Key Laboratory of environmental Chemistry and Ecotoxicology research center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China2. College of Chemistry and Chemical Engineering Graduate University of Chinese Academy of Sciences Beijing 100049 China

A novel fluorescence ＂turnon＂ probe for CH^2＋ detection has been designed based on a Cu^2＋ triggered spirolactam ringopening reaction. The synthetic probe is a doubleresponsive fluorescent and colorimetric Cu^2＋specific sensor. In aqueous solution, it exhibits high selectivity and excellent sensitivity. With a significant color change visible to the naked eye at the concentration of 3 *** （ca. 0.19 mg/L）, about one magnitude lower than the WHO （World Health Organization） recommended level （2.0 mg/L） for Cu^2＋ions in drinking water, the probe could be used to monitor Cu^2＋ ions in drinking water.

关键词： copper – fluorescent chemosensor – chromogenic probe – rhodamine